./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 15:38:05,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:38:05,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 15:38:05,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:38:05,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:38:06,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:38:06,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:38:06,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:38:06,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:38:06,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:38:06,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:38:06,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:38:06,006 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:38:06,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:38:06,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:38:06,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:38:06,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 15:38:06,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:38:06,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:38:06,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:38:06,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:38:06,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:38:06,013 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:38:06,013 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:38:06,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:38:06,014 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:38:06,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:38:06,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:38:06,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:38:06,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:38:06,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:38:06,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:38:06,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:38:06,025 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:38:06,025 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:38:06,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:38:06,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:38:06,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:38:06,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:38:06,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:38:06,220 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:38:06,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-09-08 15:38:07,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:38:07,536 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:38:07,537 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-09-08 15:38:07,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b33b46c77/3392f609342d4bffb3f726689a271935/FLAG96c0c16a1 [2024-09-08 15:38:07,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b33b46c77/3392f609342d4bffb3f726689a271935 [2024-09-08 15:38:07,556 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:38:07,557 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:38:07,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml [2024-09-08 15:38:07,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:38:07,664 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:38:07,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:38:07,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:38:07,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:38:07,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:38:07" (1/2) ... [2024-09-08 15:38:07,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7e3741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:38:07, skipping insertion in model container [2024-09-08 15:38:07,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:38:07" (1/2) ... [2024-09-08 15:38:07,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@eda5be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:38:07, skipping insertion in model container [2024-09-08 15:38:07,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:38:07" (2/2) ... [2024-09-08 15:38:07,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7e3741 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07, skipping insertion in model container [2024-09-08 15:38:07,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:38:07" (2/2) ... [2024-09-08 15:38:07,700 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:38:07,700 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L84-L84] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L65-L68] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L90-L90] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L80-L80] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L52-L52] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L46-L49] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L71-L71] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,701 INFO L1541 ArrayList]: Location invariant before [L87-L87] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,702 INFO L1541 ArrayList]: Location invariant before [L61-L61] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-09-08 15:38:07,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:38:07,866 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2024-09-08 15:38:07,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:38:07,880 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:38:07,975 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2024-09-08 15:38:07,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:38:07,986 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:38:07,987 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07 WrapperNode [2024-09-08 15:38:07,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:38:07,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:38:07,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:38:07,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:38:07,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,022 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-09-08 15:38:08,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:38:08,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:38:08,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:38:08,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:38:08,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:38:08,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:38:08,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:38:08,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:38:08,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (1/1) ... [2024-09-08 15:38:08,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:38:08,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:08,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 15:38:08,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 15:38:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:38:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:38:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:38:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:38:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:38:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 15:38:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 15:38:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 15:38:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:38:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:38:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:38:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:38:08,120 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 15:38:08,191 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:38:08,193 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:38:08,602 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:38:08,603 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:38:08,740 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:38:08,740 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 15:38:08,741 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:38:08 BoogieIcfgContainer [2024-09-08 15:38:08,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:38:08,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:38:08,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:38:08,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:38:08,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:38:07" (1/4) ... [2024-09-08 15:38:08,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1a8767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:38:08, skipping insertion in model container [2024-09-08 15:38:08,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:38:07" (2/4) ... [2024-09-08 15:38:08,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1a8767 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:38:08, skipping insertion in model container [2024-09-08 15:38:08,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:38:07" (3/4) ... [2024-09-08 15:38:08,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1a8767 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:38:08, skipping insertion in model container [2024-09-08 15:38:08,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:38:08" (4/4) ... [2024-09-08 15:38:08,749 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2024-09-08 15:38:08,762 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:38:08,762 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-09-08 15:38:08,762 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:38:08,872 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 15:38:08,907 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:38:08,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:38:08,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:08,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:38:08,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 15:38:08,939 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:38:08,949 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2024-09-08 15:38:08,954 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@160dd61b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:38:08,954 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:38:09,052 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:38:09,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:09,057 INFO L85 PathProgramCache]: Analyzing trace with hash 755730225, now seen corresponding path program 1 times [2024-09-08 15:38:09,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:09,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468918261] [2024-09-08 15:38:09,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:09,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:38:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:38:09,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468918261] [2024-09-08 15:38:09,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468918261] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:38:09,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:38:09,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:38:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527571458] [2024-09-08 15:38:09,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:38:09,619 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:38:09,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:38:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:38:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:09,641 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:09,642 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:38:09,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:38:10,323 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:38:10,324 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:38:10,324 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:38:10,325 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 15:38:10,331 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-08 15:38:10,333 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE (1/4) [2024-09-08 15:38:10,336 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:38:10,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:38:10,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:10,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:38:10,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-09-08 15:38:10,362 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:38:10,363 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:38:10,364 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@160dd61b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:38:10,364 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 15:38:10,599 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:10,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1571470937, now seen corresponding path program 1 times [2024-09-08 15:38:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:10,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488410829] [2024-09-08 15:38:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:38:11,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:38:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488410829] [2024-09-08 15:38:11,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488410829] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:38:11,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88700721] [2024-09-08 15:38:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:11,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:11,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:11,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:38:11,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 15:38:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:11,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 15:38:11,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:38:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 15:38:11,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:38:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:38:11,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88700721] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:38:11,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:38:11,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-09-08 15:38:11,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152599691] [2024-09-08 15:38:11,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:38:11,861 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-08 15:38:11,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:11,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-08 15:38:11,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-08 15:38:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:11,862 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:11,862 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:38:11,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:13,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:38:13,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 15:38:13,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:13,950 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:13,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash 728412208, now seen corresponding path program 2 times [2024-09-08 15:38:13,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:13,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127743570] [2024-09-08 15:38:13,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 107 proven. 1 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-09-08 15:38:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:38:16,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127743570] [2024-09-08 15:38:16,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127743570] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:38:16,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061919837] [2024-09-08 15:38:16,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:38:16,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:16,494 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:38:16,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 15:38:16,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:38:16,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:38:16,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 15:38:16,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:38:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 60 proven. 11 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-09-08 15:38:16,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:38:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-09-08 15:38:16,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061919837] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:38:16,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:38:16,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-09-08 15:38:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809022623] [2024-09-08 15:38:16,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:38:16,994 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-08 15:38:16,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:16,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-08 15:38:16,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-09-08 15:38:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:16,996 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:16,996 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:38:16,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:38:16,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:38:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-08 15:38:19,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 15:38:19,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:19,493 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:19,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:19,493 INFO L85 PathProgramCache]: Analyzing trace with hash -958370412, now seen corresponding path program 3 times [2024-09-08 15:38:19,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:19,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477794363] [2024-09-08 15:38:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-09-08 15:38:20,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:38:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477794363] [2024-09-08 15:38:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477794363] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:38:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387612016] [2024-09-08 15:38:20,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:38:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:20,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:20,104 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:38:20,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 15:38:20,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 15:38:20,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:38:20,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 15:38:20,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:38:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-09-08 15:38:20,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:38:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-08 15:38:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387612016] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:38:20,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:38:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 17 [2024-09-08 15:38:20,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725366492] [2024-09-08 15:38:20,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:38:20,399 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 15:38:20,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 15:38:20,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-09-08 15:38:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:20,400 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:20,400 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:38:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:38:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-09-08 15:38:20,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:38:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-08 15:38:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-08 15:38:23,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 15:38:23,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:23,536 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:23,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1810313329, now seen corresponding path program 4 times [2024-09-08 15:38:23,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:23,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99495349] [2024-09-08 15:38:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:39:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 750 proven. 2359 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-09-08 15:39:22,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:39:22,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99495349] [2024-09-08 15:39:22,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99495349] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:39:22,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828317216] [2024-09-08 15:39:22,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:39:22,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:39:22,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:39:22,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:39:22,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 15:39:29,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:39:29,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:39:29,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 3650 conjuncts, 150 conjuncts are in the unsatisfiable core [2024-09-08 15:39:29,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:48:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 4 proven. 3237 refuted. 102 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 15:48:05,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:48:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 1253 proven. 1780 refuted. 24 times theorem prover too weak. 299 trivial. 0 not checked. [2024-09-08 15:48:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828317216] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:48:48,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:48:48,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 68, 21] total 105 [2024-09-08 15:48:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332965402] [2024-09-08 15:48:48,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:48:48,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-09-08 15:48:48,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:48:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-09-08 15:48:48,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=964, Invalid=9741, Unknown=215, NotChecked=0, Total=10920 [2024-09-08 15:48:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:48:48,982 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:48:48,982 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 5.038095238095238) internal successors, (529), 105 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:48:48,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:48:48,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-09-08 15:48:48,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-09-08 15:48:48,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:48:51,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:48:53,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:48:55,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:48:57,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:48:59,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:01,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:03,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:05,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:07,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:09,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:11,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:15,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:41,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:43,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:49:54,265 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification. DAG size of input: 32 DAG size of output: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:50:00,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:02,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:04,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:17,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:19,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:21,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:23,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:25,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:27,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:29,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:31,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:33,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:35,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:37,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:39,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:41,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:43,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:45,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:47,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:49,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:50:51,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:51:45,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-08 15:51:47,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15